Reland: Move the user agent styles sheets to blink_resources.grd (Part 3)

Source/core/rendering/RenderThemeChromiumDefault.cpp

Index: Source/core/rendering/RenderThemeChromiumDefault.cpp
diff --git a/Source/core/rendering/RenderThemeChromiumDefault.cpp b/Source/core/rendering/RenderThemeChromiumDefault.cpp
index caff84b07543a53f88aeba01edd0c24390f7dea0..42489dffbd69037dd53f2338bc83dc140b51e237 100644
--- a/Source/core/rendering/RenderThemeChromiumDefault.cpp
+++ b/Source/core/rendering/RenderThemeChromiumDefault.cpp
@@ -26,11 +26,11 @@
 #include "core/rendering/RenderThemeChromiumDefault.h"
 
 #include "core/CSSValueKeywords.h"
-#include "core/UserAgentStyleSheets.h"
 #include "core/rendering/PaintInfo.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderProgress.h"
 #include "platform/LayoutTestSupport.h"
+#include "platform/PlatformResourceLoader.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsContextStateSaver.h"
@@ -115,7 +115,7 @@ String RenderThemeChromiumDefault::extraDefaultStyleSheet()
 {
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
     return RenderThemeChromiumSkia::extraDefaultStyleSheet()
-        + String(themeInputMultipleFieldsCss, sizeof(themeInputMultipleFieldsCss));
+        + loadResourceAsASCIIString("themeInputMultipleFields.css");
 #else
     return RenderThemeChromiumSkia::extraDefaultStyleSheet();
 #endif